Temperature-actuated automatic control valve



Nov. 12, 1929. J. SLADKY ET AL. 1,735,475

TEMPERATURE ACTUATED AUTOMATIC CONTROL VALVE I Filed oct. .8. 1928 Patented Nov. 12, 1929 4 ITED ST ATE'N OFFICE JOSEPH DER G. SLADKY, OF MILWAUKEE, WISCONSIN, ASSIGNOBS 'IO NATIONAL ENAMZEL'ING & STAMPING 00., INQ, OF MILWAUKEE, WISCONSIN TEMPERATURE-ACTUATED AUTOMATIC CONTROL VALVN Application filed October 8, 1928. Serial No. 311,231.

This invention relates'to temperature actuated automatic control valves.

In gasoline stoves, it is the practice to heat the generator tube to'generate the gas for the burner by any suitable means prior to allowing the fuel to pass to the burner. It sometimes happens through carelessness, or other causes, that the fuel is-allowed to pass to the burner before the generator tube is sufficient- 1y heated, with consequent flooding and sometimes with serious results.

' This invention is designed to overcome the defects noted above, and objects of this invention are to provide a temperature actuated .15 automatic control valve which is applicable to the control of gasoline stoves and to other analogous uses, and which is so made that it is necessary to heat the generator tube and an associated member before gasoline or other fuel can pass to the generator and main burner, so that there is no possible change of flooding the burner or, in other words, allowing fuel to pass thereto before the generator tube has been sufficiently heated.

Further objects are to provide an automatic device which functions without any thought on the part of the operator, which is relatively simple and easy to install, and which actuates a control valve for the fuel flow in a manner so that when a suflicient temperature has been obtained, the valve will be opened, and when the burner is extinguished from any cause, the valve will close.

' An embodiment of the invention is shown 5 in the accompanying drawing in which:

The single figure is a diagrammatic view of the devlce.

It is-to be understood that although the de- "vice is shown as applied to gasoline or other burners of this type, that nevertheless it is equally applicable to other devices, such for instance, as gas stoves.

Referring to the drawing, it will be seen that a generator tube.1 of conventional construction is illustrated and is provided with a control hand wheel 2 and connected at one end to a burner 3. The burner may be in any position desired, but is shown in the position given in the drawing merely for the sake of clearness. The generator tube is connected drawing. Intermediate the ends of the valve adjacent its other end by means of a pipe 4 through the control valve to a supply pipe 5 extending to any suitable source of fuel supply. Further, a priming cup or heating cup 6, for initially heating the generator tube, is positioned below such tubeand is provided with a supply pipe 7, whereby it may be temporarily supplied with fuel for initially heating the generator tube.

The control device comprises a casing 8, which is connected to the supply pipe 5 and which is provided with a discharge port 9 communicating with the pipe 4;. This discharge port is provided with a valve seat which cooperates with a conical or other shaped valve 10, preferably formed intergrally with the valve stem 11. The upper end of this valve stem is guided in an apertured plug 12 screwed into the casing, as indicated in the stem, a pair of spaced collars 13 are provided between which the spherical end 14 of the short arm 15 of a valve actuating lever is positioned. If desired, this lever may be forked in an obvious manner to cooperate with the discs or collars 13. The lever has its long arm 16 projecting from the device. The lever is firmly secured to a diaphragm 17 sealed in the open end of the casing in anysuitable manner. For instance, the diaphragm may be clamped in place by means of the ring nut l8. a

The free end of the long lever 16 is slotted and receives one arm 19 of a thermostatic member, preferably of the bi-metallic type. The other end 20 of the U-shaped members is securely attached to a stationary portion 21 of the stove.

In using the device, the priming cup or heating cup 6 is filled with fuel and the fuel is lighted to thereby heat the generator tube 1.' At the same time, the flame from the priming cup heats the thermostatic member and rocks the free end of the lever 16 downwardly. This opens the valve and allows fuel to pass to the burner. It is to be noted, however, that no fuel can pass until a sufficient degree of heat has been obtained. Consequently, undesirable flooding of the burner is wholly avoided. Also, it is to be noted that if, for any reason, the burner should we have hereunto set our hands at Milwaugo out, the thermostatic member would imkee, in the county of Milwaukee and State of mediately close the valve and prevent flood- Wisconsin.

ing. I JOSEPH SLADKY.

5 It will be seen that a very simple type of ALEXANDER C. SLADKY. 70

apparatus has been provided, and that the diaphragm serves the purpose of sealing the lever in place, or in other words, closing the open end of the casing without requiring any packing whatsoever. 75

It Will also be seen that the device is very simple and is reliable in operation.

Although the invention has been described in considerable detail, such description is intended as illustrative rather than limiting 80 as the invention may be variously embodied and as the scope of such invention is to be determined as claimed.

.We claim:

2o 1. In a device of the class described, the g5 combination of a generator tube, a burner connected to said tube, means for supplying fuel I to said tube, a valve for controlling the supply of fuel, a lever having one end connect ed to said valve, a diaphragm pivotally sup- I 90 porting said lever intermediate its ends, and a thermostatic member mounted adjacent said tube and connected to the other end of said lever.

2. In a device of the class described, the I 95 combination of a burner, a casing having a 1 diaphragm closing one side thereof, a pipe for supplying fuel to said casing, said case .ing having a port provided with a valve seat,

a pipe leading from said port to said burner, 100

a valve mounted Within said casing and co-' operating with said seat, a lever carried by said diaphragm and having one end connected to said valve, and a thermostatic member 40 located adjacent said burner and connected j 105 to the other end of said lever. I 3. The combination of a burner, a generator tube connected to said burner, means for conducting fuel to said tube, a valve controlling the flow of fuel, a lever pivoted inter- I110 mediate its end and having an end connected to said valve, a hermostatic 'member mounted adjacentsai tube and connected to the other end of said lever, and a priming cup mounted below said tube and adjacent said thermostatic member.

4. The combination of a burner, a generator tube connected to said burner, means for conducting fuel tosaid tube, a valve con- I m trolling the flow of fuel, a lever pivoted intermediate its end and having an end connected to 'said valve, a U-shaped bi-metallic thermostatic member having one end fixedand the other end connected to the other end of said lever, said thermostatic member being mounted adjacent said generator tube, and a priming cup mounted below said tube and adjacent said thermostatic member.

In testimony that we claimv the foregoing 1m 

